Samba server guest connections Post: 302581028

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Top Forums UNIX for Dummies Questions & Answers Samba server guest connections Post 302581028 by konos5 on Sunday 11th of December 2011 09:51:34 PM

12-11-2011

Registered User

Quote:

Originally Posted by Corona688

samba always expects its own usernames to match system ones. That's how they login -- a samba password associated with a local system username. When samba has an entry and /etc/passwd doesn't, samba considers that file corruption!

So yes -- there does have to be a 'nobody' user. Linux systems almost always have one anyway, a do-nothing user with no home directory, no password, and access to nothing significant. If you check ps aux you'll probably find daemons running as nobody.

Since Windows can have very long and strange usernames which UNIX would refuse to keep in /etc/passwd, there has to be some way to translate them into local usernames. That's what smbusers is for.

It's just a text replacement which happens before login. So as long as you translate those user names into a local username, it's okay.

Note that samba doesn't care about your system passwords, just the samba ones, which is why samba can login to 'nobody', which shouldn't have a password for local logins.

Thanks for all this useful information.
However, when I tried to map the guest account to 'nobody', the system didn't work. Only when I created the UNIX account 'nobody' did the system work (or when I just used myUnixAccountName). Therefore I assume 'nobody' didn't exist on my system...could that be the case?

Thanks to both of you for your time and effort.

konos5

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LEARN ABOUT DEBIAN

tdbbackup

TDBBACKUP(8)                                                System Administration tools                                               TDBBACKUP(8)

NAME

       tdbbackup - tool for backing up and for validating the integrity of samba .tdb files

SYNOPSIS

       tdbbackup [-s suffix] [-v] [-h]

DESCRIPTION

       This tool is part of the samba(1) suite.

       tdbbackup is a tool that may be used to backup samba .tdb files. This tool may also be used to verify the integrity of the .tdb files prior
       to samba startup or during normal operation. If it finds file damage and it finds a prior backup the backup file will be restored.

OPTIONS

       -h
           Get help information.

       -s suffix
           The -s option allows the adminisistrator to specify a file backup extension. This way it is possible to keep a history of tdb backup
           files by using a new suffix for each backup.

       -v
           The -v will check the database for damages (currupt data) which if detected causes the backup to be restored.

COMMANDS

       GENERAL INFORMATION

       The tdbbackup utility can safely be run at any time. It was designed so that it can be used at any time to validate the integrity of tdb
       files, even during Samba operation. Typical usage for the command will be:

       tdbbackup [-s suffix] *.tdb

       Before restarting samba the following command may be run to validate .tdb files:

       tdbbackup -v [-s suffix] *.tdb

       Samba .tdb files are stored in various locations, be sure to run backup all .tdb file on the system. Important files includes:

       o    secrets.tdb - usual location is in the /usr/local/samba/private directory, or on some systems in /etc/samba.

       o    passdb.tdb - usual location is in the /usr/local/samba/private directory, or on some systems in /etc/samba.

       o    *.tdb located in the /usr/local/samba/var directory or on some systems in the /var/cache or /var/lib/samba directories.

VERSION

       This man page is correct for version 3 of the Samba suite.

AUTHOR

       The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open
       Source project similar to the way the Linux kernel is developed.

       The tdbbackup man page was written by John H Terpstra.

Samba 3.5                                                           06/18/2010                                                        TDBBACKUP(8)

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